image of a dog keeping cool

If you don’t have a good air conditioner, summers can be tough. Before summer begins, make sure your cooling system is working properly. Although extremely reliable, like all machines, they break down from time to time. By being aware of typical air conditioner problems and their remedies, you can have a comfortable, stress-free summer.

Typical Cooling Problems You May Face This Summer

The most common air conditioning issues are listed below:

1. Air Conditioner Making Noises

image of a woman and son covering ears because air conditioner noises

It’s typical for air conditioners to produce a low hum, but any other noises are a cause for concern. Each noise indicates a specific problem. For example, a buzzing sound likely is from an electrical fault. While a hissing sound indicates an AC refrigerant leak. An experienced HVAC technician will be able to diagnose the problem based on the sounds that your unit is making.

2. Air Conditioner Does Not Turn On

If your AC is not turning on, the circuit breaker may have tripped, causing it to be unresponsive. Reset if necessary and check to see if the plug is loose. Also, check and replace the thermostat batteries. If these steps don’t seem to work, contact a licensed HVAC technician.

3. AC Refrigerant Leak

manometer to test air conditioner refrigerant levels

Your AC unit relies on refrigerant to perform efficiently and correctly. If it leaks, cooling will be unequal throughout the house, power consumption will increase, coils will freeze, and the compressor might break. To avoid AC refrigerant leaks, schedule an inspection to be performed regularly.

4. Air Conditioner Does Not Blow Cold Air

If your central air conditioner is not cooling your house, look to see if the air filter is clogged with dirt. Dirt prevents the air from flowing properly. Also, the condenser can freeze. This decreases the cooling of the system. Replace your filter often to avoid this.

5. Air Conditioner Freezing Up Outside Unit

image of an air conditioner compressor

For this to happen, the coolant may be running low due to a leak or the temperature outside could be falling. There could also be a lack of airflow or an issue with the blower motor or a lack of sufficient airflow. To find out what the problem is, call a technician to take a look at the unit.

6. Air Conditioner Leaking Water

On humid days it is common for condensation to build up in the coils. Any moisture should flow out of the unit through the drain channels, but if they are broken or blocked, a leak can occur. This can happen due to a broken condensate pan, incorrect installation, or blocked drain pipes.

7. Frozen Evaporator Coil

To avoid freezing, the evaporator coil needs constant airflow. If you run into a frozen coil, check for any blockage from clogged vents, dirty air filters, or a broken fan. Regular AC maintenance and cleaning will prevent this from happening.

8. Sensor Problem


It’s important that your thermostat sensor is placed in the correct spot. If it is not, it can have false readings. An HVAC technician can fix its position and calibrate it.

9. AC Electric Control Failure

Air conditioners perform their best at a constant state. Wear and tear can easily occur if it is cycling frequently. Electric control failure may happen as well if the fan motor and blower motor controls are not working properly.

10. AC Unit Drainage Problem

Inadequate drainage causes water to sit inside the AC unit which often creates bacteria and fungi. With time, foul odors will spread through the house which is unhealthy and unpleasant. Regular professional inspections and maintenance will prevent this problem.

Simple Steps To Prevent Air Conditioner Problems

1. Check The HVAC Filter

It’s good practice to replace your air filters regularly since a lot of issues occur from a dirty filter. Replace it once about once every one to three months. If you notice the filter is clogged sooner than that, replace it even if it’s before the scheduled date.

2. Clean The Condensing Unit

Dirty coils in the outdoor unit are not very effective at transferring heat outside. To fix this, clean it periodically and remove any leaves, twigs, and trash.

3. Make Sure That Nothing Is Blocking The Vents

Poor airflow can be caused by objects blocking vents like curtains, furniture, and other items. Be aware of these spots and be ready to fix any problems so the air can flow freely.

4. Install A Programmable Thermostat

Replace your thermostats with ones that have better performance and calibration. If you can, get a programmable thermostat, so you can set the timers to your schedule and preferred temperature. Doing this will improve precision and reduce energy consumption.


The best way to avoid a broken cooling system is to proactively monitor and clean it. Homeowners should have maintenance and inspections done by HVAC professionals regularly. Only skilled experts can determine the problem and fix it right away for reasonable rates and great results.

Call Tower Energy For Your Air Conditioning Requirements

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Tower Energy offers superior heating and cooling services in Hartford County, Connecticut, and the surrounding areas. Our team of experienced and knowledgeable NATE certified technicians can provide you with superior HVAC installations, tune-ups, replacements, and repairs.

Tower Energy guarantees the most competitive cooling and heating service costs in the area. We can help you improve your energy efficiency, home comfort, and reduce your cooling costs. If you need to repair or replace an HVAC system, we can assist you in choosing the best one for you. All of our work is backed with a guarantee to ensure your satisfaction. Give Tower Energy a call now to schedule a service appointment. We offer free, in-home estimates.

Contact us now or call us at (860) 677-7347 to find out more.